Abrading device.



G. E. GRAHAM. ABRAMNG, DEVICE. APPLICATION FILB) FAN. 24. 1910.

Patentet Sept. i9, 193. l.

UN ITED lSIATES PATENT OFFICE.

CHARLES iE'. GRAHAM, OF BOSTON, MASSACHUSETTS, ASSIGNQR T O UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION `OF NEW JERSEY.

ABRADING DEVICE.

Specicatioyn of Letters Patent. Patented Sept, 19, 1911;

Application mea January 24, 1910. seriai No. 539,787.

To all whom it may concern:

Be it known that I, CHARLES E. GRAHAM, a citizen of the United States, residing at Boston, in the county of Suffolk and State of hflassachusetts, have invented certain Improvements in Abrading Devices,'of which the following description, in connection with 'the accompanying drawings, is a specif ication, like reference characters ou` the drawings indicating like parts in the several figures. v

This invention relates to rotary abrading devices such as are commonly employed in the manufact-ure of bootsand shoes.

'lhe object of the present invention is. to provide a butling roll having improved means whereby it may be attached to a support-ing shaft.

To "this end the present invention consists in the improved buiiing device hereinafter describedand claimed.

In the drzuvingsV-Itigure 1 is a perspec- Vtive viewof a butling device embodying the present invention; Fig. 2 is a perspective view illustrating the means for attaching the roll to its shaft; Fig. 3 is a detail view showing the sections of the roll in closed position.

upon the shaft, and Fig. 4 :is a sectional view of' the roll, and shows more particularly the hinge by which the sections are connected.

Referring to the drawings,` 2 designates a shaft adapted to support the butlng roll. A section 4 of the roll is provided at each e'nd with a semicircular block 6 secured thereto, the inner face of the block conforming to the transverse curvature of thel shaft. Each of the blocks 6 1s provided with anoutwardly` extending iiange 8 which is curved to engage a portion of the circumference lof the shaft. A pair of collars 10, adapted to be adjustably clamped upon the.

shaft as by means of set screws 12 are provided with` slots arranged to respectivelyreceive the iang'es 8. A movable section 16 is hinged to the stationary section and is provided with semicircular blocks 18 at each end. Both the section 4 and the section 16- are covered with a layer of felt and in closed position they form' a cylindrical cover supporting surface. The movable section is provided' at eachl end with an` outwardly projecting pin 19. A pair ot circular locking member said surface will engage -the pin and .clamp the sections together, the locking members being frictionally held in their op.- erative posit-ions. Each locking member is provided with a slot 22 in its'circumference which is so arranged that when .the locking member is in unlocked position the slot will register with one of the pins 19 so that the sections maybe opened or closed without the necessity of moving the locking'members along the shaftaway from the roll.

A 1n the use of the buflini rollshown the fixed section is placed upo'f the shaft and the two collars 10 are respectively slipped over the flanges S. 'The'collars are then secured .firmly upon the shaft by the set screws-12. The 'covering of'abrading material, such as sandpaper or the like,'is applied-in the usual way and the movable section broughtinto closed position and locked by rotating the locking members 20 as previously explained.` lWhenever/it is desired to remove tl roll from' the shaft the locking members are turned' until'the'y are free fronrengagement with the pin's 19 and are then moved away from the ends of the roll. The set screw Vupon one of the collars is then loosened so `that the. collar may be moved along the shaft until it is clear of its flange.`4

The' roll mayv then be moved longitudinally until the other flange is clear of\its collar. As will be obvious from Fig. 2 t-he roll may then be removed transversely of the shaft. It will be observed in the construc- 'tion shown that the roll may be adjusted shaft, thus rendering it unnecessary ,to adjust the roll circulnferentially of the shaft..

, the shaft', including'iianges projecting outwardly from the ends of said section andv every' time that 'it is replaced upon y said shaft..-

Having described my intention, 'what I claiin'as new'and desire to secure by Let-- ters Patent of the United States is l. A rotary abrading device,jhavii1g in combination7 a plurality of sections pivotally connected and arranged to forni a cover.

supporting surface,v a supporting xshaft, means for securing one of said sectionsjto formed to engage portions of the circumferT ence of tlieshaft, members carried by the Ishaft having-slots arranged to respectivel receive said flanges, said members being provided with means to secure them upon the sl aft.

2.v r f' rotary abrading device, having .inI

combi-nation, a plurality of pivotallyconnected longitudinal' sections constructed tol be secured around a supporting shaft, mea-ns for securing'one of said sections rigidly to the shaft includinglanges projecting from oppositeiends of said section in the diret:-v

tion of tlielength:I thereof, and collars rotatably mounted upon said shaft having slots arranged to;I respectively receive said iiangesymeans ffoi1 clamping said collars in i M opera-tiye positions, and means for clamping the@motions-together. p v

n 3. A rotary abrading devicey-having-in combination, a section constructed for engagement with a supporting shaft, means for securing the section upon the shaft including a flange projecting fi'oin the end of the section in the direction of thel length thereof, and a nieliiber carried by the shaft having a slot arranged to receive the flange,

means for locking said fiange in said slot, a second section pivotally connected to the -rstna1iied section aiidconstiucted to form with said section a coVer-supportlng surface andmeans for retaining the sections in closed position.

4. A rotary abradin'g'device havin in combination,v a plurality of sections pivotally connected and arranged to form a cover supporting surface, a .supporting shaft,

. members provided with means for securing ALLAN Biinnoiirs; l ELIZAB'rH. CoUrE, 

